CA2274969A1 - Apparatus for sensing vehicles - Google Patents

Apparatus for sensing vehicles Download PDF

Info

Publication number
CA2274969A1
CA2274969A1 CA002274969A CA2274969A CA2274969A1 CA 2274969 A1 CA2274969 A1 CA 2274969A1 CA 002274969 A CA002274969 A CA 002274969A CA 2274969 A CA2274969 A CA 2274969A CA 2274969 A1 CA2274969 A1 CA 2274969A1
Authority
CA
Canada
Prior art keywords
probes
sections
vehicle
conduit
access hole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002274969A
Other languages
French (fr)
Other versions
CA2274969C (en
Inventor
Frederick J. Turk
Claude E. Cybulski
Earl B. Hoekman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Global Traffic Technologies LLC
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2274969A1 publication Critical patent/CA2274969A1/en
Application granted granted Critical
Publication of CA2274969C publication Critical patent/CA2274969C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/042—Detecting movement of traffic to be counted or controlled using inductive or magnetic detectors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
    • G01V3/10—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Electromagnetism (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Traffic Control Systems (AREA)

Abstract

An underground vehicle sensing system (20) extends below a vehicle travel surface to detect the presence of a vehicle. A conduit (24) extends substantially horizontally underground from an access hole placed at the side of the vehicle travel surface. A plurality of sensors (50) are spaced apart in the conduit to detect localized changes in the magnetic field. A plurality of sections house the probes and wiring to orient and position the probes. Sections detachably clip together to form a lightweight support structure and may be added one by one through the access hole. Lightweight extension members are utilized in some configurations between the support sections for positioning and supporting the probes.
CA002274969A 1996-12-27 1997-04-17 Apparatus for sensing vehicles Expired - Lifetime CA2274969C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/777,298 1996-12-27
US08/777,298 US5850192A (en) 1996-12-27 1996-12-27 Apparatus for sensing vehicles
PCT/US1997/006408 WO1998029765A1 (en) 1996-12-27 1997-04-17 Apparatus for sensing vehicles

Publications (2)

Publication Number Publication Date
CA2274969A1 true CA2274969A1 (en) 1998-07-09
CA2274969C CA2274969C (en) 2005-02-08

Family

ID=25109865

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002274969A Expired - Lifetime CA2274969C (en) 1996-12-27 1997-04-17 Apparatus for sensing vehicles

Country Status (10)

Country Link
US (1) US5850192A (en)
EP (1) EP0950199B1 (en)
JP (1) JP3978467B2 (en)
KR (1) KR100467303B1 (en)
AU (1) AU725229B2 (en)
BR (1) BR9714101B1 (en)
CA (1) CA2274969C (en)
DE (1) DE69711234T2 (en)
ES (1) ES2170947T3 (en)
WO (1) WO1998029765A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6546344B1 (en) 1999-07-02 2003-04-08 Banner Engineering Corporation Magnetic anomaly sensor system
US6166660A (en) * 1999-09-15 2000-12-26 Grenier; Frank Driveway alarm system
US7102244B2 (en) * 2002-10-03 2006-09-05 Hunter Jr John P Vehicle actuated road imbedded magneto generator
US7005850B2 (en) * 2003-02-20 2006-02-28 Sensonix, Inc. Magnetic sensor system and method for installing magnetic sensors
US6870489B2 (en) * 2003-02-28 2005-03-22 3M Innovative Properties Company Vehicle sensing system
US20040174273A1 (en) * 2003-03-03 2004-09-09 3M Innovative Properties Company Vehicle sensing system
US8028961B2 (en) 2006-12-22 2011-10-04 Central Signal, Llc Vital solid state controller
US20110205086A1 (en) * 2008-06-13 2011-08-25 Tmt Services And Supplies (Pty) Limited Traffic Control System and Method
EP2576316A2 (en) 2010-05-31 2013-04-10 Central Signal, LLC Train detection
DE102013018003B4 (en) 2013-11-29 2015-09-24 Hermann Eser Apparatus and method for speed measurement
DE102015202780A1 (en) * 2015-02-17 2016-08-18 Robert Bosch Gmbh sensor device
US11069234B1 (en) 2018-02-09 2021-07-20 Applied Information, Inc. Systems, methods, and devices for communication between traffic controller systems and mobile transmitters and receivers
US11205345B1 (en) 2018-10-02 2021-12-21 Applied Information, Inc. Systems, methods, devices, and apparatuses for intelligent traffic signaling

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3249915A (en) * 1965-04-20 1966-05-03 Trw Inc Method and apparatus for vehicle detection
US3649958A (en) * 1970-03-25 1972-03-14 Canoga Controls Corp Vehicle detection system
US3714626A (en) * 1971-03-18 1973-01-30 Canoga Controls Corp Vehicle detection system
US3775742A (en) * 1972-09-18 1973-11-27 Canoga Controls Corp Vehicle detection system
US3943339A (en) * 1974-04-29 1976-03-09 Canoga Controls Corporation Inductive loop detector system
DE2437797C3 (en) * 1974-08-06 1979-04-26 Elmeg-Elektro-Mechanik Gmbh, 3150 Peine Arrangement for counting vehicles
US3984764A (en) * 1975-03-03 1976-10-05 Canoga Controls Corporation Inductive loop structure for detecting the presence of vehicles over a roadway
US4032096A (en) * 1976-03-03 1977-06-28 Frederick Perrault Curved bracket adapter
US4449115A (en) * 1980-10-15 1984-05-15 Minnesota Mining And Manufacturing Company Apparatus for detecting ferromagnetic material
US4839480A (en) * 1986-11-05 1989-06-13 The Gates Rubber Company Vehicle sensing device
US4943805A (en) * 1986-11-13 1990-07-24 Dennison James L Conduit-enclosed induction loop for a vehicle detector
CH683714A5 (en) * 1990-12-19 1994-04-29 Kk Holding Ag Force sensor arrangement, in particular for the dynamic axle load, speed, center distance and total weight determination of vehicles.
US5265481A (en) * 1990-12-19 1993-11-30 Kistler Instrumente Ag Force sensor systems especially for determining dynamically the axle load, speed, wheelbase and gross weight of vehicles
US5442136A (en) * 1992-07-02 1995-08-15 Allen; Jerry L. Method of installation of partitioning device for a tubular conduit
US5486820A (en) * 1992-12-18 1996-01-23 The Whitaker Corporation Traffic sensor having piezoelectric sensors which distinguish lanes
US5491475A (en) * 1993-03-19 1996-02-13 Honeywell Inc. Magnetometer vehicle detector
US5520056A (en) * 1993-04-01 1996-05-28 Etat Francais Process for conditioning and for placing a traffic sensor
GB2437797A (en) * 2006-05-05 2007-11-07 Robert Stephen Scott Flood barrier

Also Published As

Publication number Publication date
JP3978467B2 (en) 2007-09-19
BR9714101B1 (en) 2009-05-05
EP0950199A1 (en) 1999-10-20
AU2673997A (en) 1998-07-31
DE69711234T2 (en) 2002-07-18
BR9714101A (en) 2000-03-21
KR100467303B1 (en) 2005-01-24
AU725229B2 (en) 2000-10-12
US5850192A (en) 1998-12-15
ES2170947T3 (en) 2002-08-16
KR20000062349A (en) 2000-10-25
EP0950199B1 (en) 2002-03-20
CA2274969C (en) 2005-02-08
WO1998029765A1 (en) 1998-07-09
DE69711234D1 (en) 2002-04-25
JP2001508568A (en) 2001-06-26

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Effective date: 20170418